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1. IGCSE-Additional-Mathematics-Notes-0606 IGCSE-Additional-Mathematics-Notes-0606 Public

   Complete, free IGCSE Additional Mathematics (0606) notes. Structured to fill gaps in the official textbook, with full derivations and common pitfalls. ( if you think this is helpful to you, you can…

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2. IGCSE-Biology_CUP_CAIE-Note IGCSE-Biology_CUP_CAIE-Note Public

   个人笔记（我只是放在线上了而已，//made by ai deepseek v4.0lite-pro&flash model (32hours)。 DEEPSEEK api真他妈便宜好用，比网页版强太多了，搞得我多花了这么多精力在上面。//不过也没事，API意味着更好的质量。梁文锋（2CHB/1M Token)的恩情换不完

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3. IGCSE-PHYSICS-NOTE IGCSE-PHYSICS-NOTE Public

   个人笔记（我只是放在线上了而已，//made by ai deepseek v4.0flash-quickly model (12hours)

4. my-note-of-MATH my-note-of-MATH Public

   self study/ 其实是为了防止被自家数学老师炸死\\more than 200 hours to summerize

5. AP-precalculus-note AP-precalculus-note Public

   AP Precalculus notes: functions, trig, complex numbers, vectors. Concise unit summaries & examples sharpen math reasoning for AP success.

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6. IGCSE-chemistry-note IGCSE-chemistry-note Public

   IGCSE Chemistry 0620 – concise, exam-smart notes. Covers all topics (Core & Extended), Paper 2 & 4 keywords, mark‑scheme answers, and common traps. Based on 15+ past papers (2026–2028 syllabus). Pe…

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